PBS NewsHour: What’s behind China’s mass crackdown on Uighur Muslims?

Uighur Muslims in China have long reported state suppression, but now they say repression is stronger than ever. Advocates for the Muslim minority say Uighurs are now being rounded up by the hundreds of thousands and put in camps for assimilation. Nick Schifrin learns more from Omer Kanat, director of the Uighur Human Rights Project, and James Millward of Georgetown University.